From 9e363c82baf185baba9c42ae78c30b5e7be98937 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Tue, 24 Nov 2020 22:11:54 +0200
Subject: [PATCH] drm/i915: Add intel_atomic_add_affected_planes()
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drm_atomic_add_affected_planes() only considers planes which
are logically enabled in the uapi state. For bigjoiner we need
to consider planes logically enabled in the hw state. Add a
helper for that.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201124201156.17095-2-ville.syrjala@linux.intel.com
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
---
 drivers/gpu/drm/i915/display/intel_cdclk.c   |  3 +--
 drivers/gpu/drm/i915/display/intel_display.c | 13 +++++++++++++
 drivers/gpu/drm/i915/display/intel_display.h |  2 ++
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 088d5908176c4..2e878cc274b7b 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -2415,8 +2415,7 @@ static int intel_modeset_all_pipes(struct intel_atomic_state *state)
 		if (ret)
 			return ret;
 
-		ret = drm_atomic_add_affected_planes(&state->base,
-						     &crtc->base);
+		ret = intel_atomic_add_affected_planes(state, crtc);
 		if (ret)
 			return ret;
 
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 2d0d1b2ef957a..bcc7d5f8e0a84 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -15069,6 +15069,19 @@ static int intel_crtc_add_planes_to_state(struct intel_atomic_state *state,
 	return 0;
 }
 
+int intel_atomic_add_affected_planes(struct intel_atomic_state *state,
+				     struct intel_crtc *crtc)
+{
+	const struct intel_crtc_state *old_crtc_state =
+		intel_atomic_get_old_crtc_state(state, crtc);
+	const struct intel_crtc_state *new_crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+
+	return intel_crtc_add_planes_to_state(state, crtc,
+					      old_crtc_state->enabled_planes |
+					      new_crtc_state->enabled_planes);
+}
+
 static bool active_planes_affects_min_cdclk(struct drm_i915_private *dev_priv)
 {
 	/* See {hsw,vlv,ivb}_plane_ratio() */
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 5e0d42d82c110..a5771bfecba6f 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -499,6 +499,8 @@ enum phy_fia {
 			     ((connector) = to_intel_connector((__state)->base.connectors[__i].ptr), \
 			     (new_connector_state) = to_intel_digital_connector_state((__state)->base.connectors[__i].new_state), 1))
 
+int intel_atomic_add_affected_planes(struct intel_atomic_state *state,
+				     struct intel_crtc *crtc);
 u8 intel_calc_active_pipes(struct intel_atomic_state *state,
 			   u8 active_pipes);
 void intel_link_compute_m_n(u16 bpp, int nlanes,
-- 
2.30.2